Chair anti-sink ground support set



FIG. 1 is a front elevation view of a chair anti-sink ground support set showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is an isometric view thereof. 

The ornamental design for a chair anti-sink ground support set, as shown and described. 